JF呈不规则三角形。

The JF was irregularly triangle.

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另外，还在潮汐河流不规则三角形网格的生成和图形可视性方面作了初步尝试。

In addition, some attempts have been made in the generation of irregular triangular meshes in tidal rivers and computer graphics in this paper.

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不规则多边形的识别是图形识别的重要内容，本文研究不规则三角形和四边形的模糊识别问题。

The recognition of irregular polygon is very important in figure recognition. In this paper, irregular triangle and square is studied using fuzzy pattern recognition.

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